baber/WOPTO huggingface dataset:
Patent GB-581323-A (GB)
Title: Improvements in or relating to amplifier valves for high frequencies of the grounded grid triode type
IPC: H01J21/06
Filed: 1941-11-20
Abstract: 581,323. Thermionic valves. LIEBMANN, G., and CATHODEON, Ltd. Nov. 20, 1941, No. 14916. [Class 39 (i)] In a high-frequency triode of the type in which the output is connected between the grid and anode, and the modulation applied to the cathode, the electrodes are in the form of co-axial cylinders and the grid 4, Fig. 1, is conductively secured to a shielding disc 3 between the anode and cathode leads. The shielding effect is completed by a metal cap 9 over the other end of the grid. As shown, the grid supports are carried on the shielding disc 3, and support through mica spacers 5, 6, the anode 8 and cathode 7. The complete mount is supported on the stem 11, and, in assembly, may be secured to a disc 2 sealed through the wall of the envelope 1, with the anode lead connected to a cap 10 at the opposite end. When used with a concentric line circuit, the anode lead may be in the form of a tube sealed through the envelope as described in Specification 553,350, [Group XXXVI]. An alternative arrangement is shown in Fig. 4, in which the anode and cathode are connected, respectively, to discs 22, 23 sealed through the envelope and connected to tubes 31, 32 forming the inner conductors of a concentric line system of which the outer conductors are formed by tubes 33, 34, tuning being effected by adjustable pistons 35, 36. Another arrangement is described, Fig. 2 (not shown) in which all the leads are taken through a moulded glass base of the envelope. In this, the shielding disc has a bent portion isolating the anode lead from that of the cathode. In arrangements where the leads pass out of the envelope at opposite ends the shield may have an upper or lower tubular skirt or both. To facilitate degassing, the discs 2, 3 are preferably of copper and the anode of nickel ; alternatively, the anode may be of iron, preferably an alloy of high magnetic permeability and non-rusting or plated with nickel, and the disc of copper or nickel. A suppressor grid may be interposed between the anode and grid and electrically connected to the latter or to an independent source of potential.
Patent GB-1057783-A (GB)
Title: Method of manufacturing laminate sheet
IPC: B29C43/22
Filed: 1965-04-08
Abstract: 1,057,783. Laminates. HOOVER BALL & BEARING CO. April 8, 1965 [July 23, 1964], No. 14961/65. Heading B5N. A method of making a laminated sheet comprises assembling in overlying relationship a plurality of layers each formed of or incorporating a thermosetting synthetic resin, heating the assembly so that the resin of each layer is heated to a viscous state, applying a progressing local pressure to the surface of the assembly and, while maintaining pressure on the assembly, heating the same to a temperature for a time sufficient to cure the resin or resins and immediately thereafter cooling the assembly. The products of the process may be cemented to sheets of wood or plywood or to compressed particle boards or wood shavings boards. The preferred assembly comprises a batch of phenolic resin impregnated core sheets, a melamine resin impregnated pattern paper and a clear melamine resin impregnated paper. A further assembly comprises a top layer of copper foil and a substrate of epoxy impregnated glass cloth or phenolic resin impregnated core stock. An apparatus of the type shown in Specification 1,055,566 is used for effecting the process.
Patent GB-179447-A (GB)
Title: A swinging baffle plate for cremating furnaces
IPC: F23G1/00
Filed: 1921-05-30
Abstract: 179,447. Lockwood, A. C. May 30, 1921. Baffles.-A swinging baffle B of iron or firebrick or both is suspended from the crown or sides of a crematory furnace, to deflect the heat or. to the coffin. It is raised by coming into contact with the coffin as it is introduced and falls as the remains are consumed; or it may be raised and lowered from outside by means of a lever and counterweight.
Patent GB-787275-A (GB)
Title: Process for preparing a gasoline reforming catalyst
IPC: B01J27/13
Filed: 1955-05-24
Abstract: Gasoline is reformed in the presence of hydrogen using a catalyst prepared by impregnating a porous gamma-type alumina base with silicon tetrafluoride or fluosilicic acid and then mixing with an aqueous solution of a platinum compound, drying, and converting the platinum compound to metallic platinum. Alternatively, silica, fluorine, and platinum may be incorporated simultaneously in the catalyst by impregnating the alumina base with an aqueous solution containing fluosilicic acid and chloroplatinic acid.  The final catalyst contains by weight 0.03-3 per cent silica, 0.1-8 per cent fluorine, and at least 0.1 (preferably 0.1-2) per cent platinum (see Group III). Suitable reforming conditions are a temperature of 600-1000 DEG  F., a pressure of 50-1000 p.s.i., a liquid hourly space velocity of 0.5-10, and a hydrogen to hydrocarbon mol. ratio of 0.5-15.  The catalysts are tested by passing a mixture of methylcyclopentane and hydrogen over the catalyst and measuring the yield of benzene. In Example III an East Texas low octane naphtha is converted to a high octane reformate.  Specification 657,565 is referred to.ALSO:A gasoline reforming catalyst is prepared by impregnating a porous gamma-type alumina base with silicon tetrafluoride or fluosilicic acid and then mixing with an aqueous solution of a platinum compound, drying, and converting the platinum compound to metallic platinum.  Suitable platinum compounds are chloroplatinic acid and platinic chloride.  Alternatively silica, fluorine and platinum may be incorporated simultaneously by impregnating the alumina base with an aqueous solution containing fluosilicic acid and chloroplatinic acid.  The final catalyst contains by weight 0.03-3 per cent silica, 0.1-8 per cent fluorine, and at least 0.1 (preferably 0.1-2) per cent platinum.  Gamma-type alumina includes gamma, chi, eta and delta alumina.  The alumina base may be prepared (a) by adding alkali or ammonia to an aluminium salt solution; (b) by acidification of a soluble aluminate; (c) by reaction of water and amalgamated aluminium in the presence of a weak organic acid as peptizing agent; or (d) by hydrolysis of aluminium alcoholates.  Conversion of the platinum compound to platinum may be effected by calcining in air at 700-1000 DEG  F. or by reduction in hydrogen at 250-750 DEG  F.  Specification 657,565 is referred to.
Patent GB-291099-A (GB)
Title: Improvements in the casings for machines subject to high pressures
IPC: F01D25/24
Filed: 1928-05-22
Abstract: 291,099. Akt.-Ges. Brown, Boveri, et Cie. May 27, 1927, [Convention date]. Casings; cooling parts.-The halves of a longitudinally divided casing of a machine, such as a pump or compressor, subjected to high pressure and temperature are held together by a plurality of rings c which are given the necessary stress by the heating of the casing itself. The rings may be of material such as nickel steel having a smaller expansion co-efficient, or may be maintained at a lower temperature by insulating the rings from the casing or by covering the casing e with heat insulating material i and air cooling the rings c, Fig. 6, or by circulating water under thermal control through coils f, Fig. 5.
Patent GB-600239-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B1/16
Filed: 1946-05-17
Abstract: 600,239. Valves. FAWCETT, H. W. May 17, 1946, No. 15029. [Class 135] [Also in Group II] In a centrifugal separator in which separated solids are discharged through an annular port 4, the port is closed during centrifuging by a continuous ring 5, Figs. 1 and 2, of rubber. The ring is withdrawn to the position shown on a reduction in speed by transversely curved springs 7. The springs 7 and clips 6 embracing the ring 5 are segmental and leave short portions of the ring uncovered. The assembly is positioned by the engagement of the tips of the springs 7 with recesses 11, 12 in the separator bowl 1, 2. In the form shown in Fig. 4, a broader rubber ring 13 has outwardly turned flanges 14 and is carried by a rigid ring 10. The rubber ring 13 is supported by rings 12, 15 cut into fingers by slots 17, 18. Under centrifugal force the rings flex transversely and the flanges 14 are pressed on to the walls of the separator bowl. In other forms, the ring is polygonal in form when at rest and takes up a circular form, so sealing the discharge port under centrifugal force.
Patent GB-150400-A (GB)
Abstract: 150,400. Lee, H. J. May 28, 1919. Guarding against unauthorized use.-The deflectable axle-ends on which the steering roadwheels rotate are looked against steering movements relatively to the fixed axle to prevent theft or unauthorized interference. In the construction shown in Figs. 1 and 2 applied to a motorvehicle, the swivelling-axle 11 is locked to the pivot pin 5 or to a sleeve fixed thereto by a toothed segmental member 9 having a tooth 8 which may engage with one of the slots in the pin 5. The segment is connected to a rod 12 by which it may be engaged or withdrawn, the rod passing through the swivelling-axle and being connected at its outer end to a lock 13.
Patent GB-676392-A (GB)
Title: Improvements in apparatus for throwing clay targets
IPC: F41J9/20
Filed: 1950-06-16
Abstract: 676,392. Clay target throwing apparatus. NORTHOVER, H. R. June 16, 1950, No. 15042/50. Class 132 (i). Clay target throwing apparatus includes a base member 1 carrying a rotatably mounted standard 3 on which is pivotally mounted a member 8 providing pivotal support for target throwing mechanism which can be rotated laterally through 90 degrees so that the target may be thrown to roll along the ground. As shown, the standard is mounted to rotate on a spigot 2 and may be fixed in any position by handle 17 and locking pin 16. Its position in relation to the base member is determined by a catch piece 27, which engages notches on the periphery of the base member 1, and is held in position by compression spring 22 operating on knuckle joint 19, 20. Fine adjustment over one notch is provided by screw 28, Fig. 4 (not shown), which moves part 20 relatively to catch piece 27. Support member 8 is integral with a web 5 which is held in a bifurcated support 4 by a pin 6 and is fixed in position by a tightening handle 7. The target throwing mechanism is pivoted on member 8 by split lugs 9 and has its lateral rotation limited by projections 11, 12, the mechanism being fixed in position by pins and handles 10. The target throwing mechanism, Fig. 5, comprises an arm 41, carrying a target carrier 42 and pivoted at 43 on casing 14, fast with a segment 44 to which is attached a tensioning spring 45 adjustably anchored at its other end to casing 14. When cocked, the segment engages lever 51 and on release of this lever the target carrier is swung round, the target released, and the target carrier overruns to half cocked position where the segment is engaged by spring 47. Cam 54, operated by handle 55, releases spring 47 when trap is not in use. An inclined projection 64 holds the target in position when the carrier is in cocked position.
Patent GB-529117-A (GB)
Title: Process for the manufacture of coloured photographic material
IPC: G03C1/825
Filed: 1939-05-22
Abstract: 529,117. Coloured photographic materials ; dyes. GASPAR, B. May 22, 1939, No. 15172. Convention date, May 23, 1938. [Class 98 (ii)] [Also in Group IV] Coloured layers for photographic use are prepared by introducing into the colloidal material used a water-soluble compound, derived from a substantially water insoluble azo dyestuff containing a carbonyl group by interaction of such group with a compound containing a salt-forming group, and thereafter regenerating the water-insoluble dyestuff by hydrolysis. Specified water-soluble derivatives are the bisulphite compounds and the hydrazones. Examples are given of the preparation of the following water-soluble derivatives, (1) the product of the action of an aqueous solution of sodium bisulphite on a suspension in alcohol of the dyestuff, 4-amino-benzaldehyde # 1-naphthylarnine, at 70C. ; (2) the bisulphite compound similarly obtained from the dyestuff, 4-amino-acetophenone # 2-naphthol; (3) and (4) the product of the action of an aqueous solution of phenylhydrazine-4-sulphonic acid on a suspension in alcohol of (3) the dyestuff, 4-aminobenzaldehyde # 2-naphthol, (4) the dyestuff, 4-aminobenzaldehyde # 1- benzoylamino-4-naphthol, at 70C. In an example of the production of the photographic layer, gelatin is dissolved in a warm aqueous solution of the product of Example (3) or (4), dilute acetic or hydrochloric acid is added, and the whole is stirred for 1 hour at 40-50C. to split off the phenylhydrazine-sulphonic acid and neutralized with caustic soda, whereupon the gelatin solution is filtered off, chilled with ice, coagulated and washed and the coloured gelatin is incorporated in a silver-halide emulsion, which is poured on to the support. Specification 496,559 is referred to. The Specification as open to inspection under Sect. 91 comprises also the use, in place of the insoluble azo dyes, of water-insoluble substances absorbing radiation in the invisible spectral regions or water-insoluble substances convertible subsequently into dyes by chemical reaction. This subject-matter does not appear in the Specification as accepted.
Patent GB-612354-A (GB)
Title: Improvements in flexible bearings for centrifugal separators
IPC: F16C27/04
Filed: 1946-05-20
Abstract: 612,354. Bearings for centrifugal separators. AKTIEBOLAGET SEPARATOR. May 20, 1946, No. 15194. Convention date, June 1, 1945. [Class 12 (i)] In a flexible ball-bearing for the vertical spindle 2 of a centrifugal separator, radial stresses are transmitted from the outer ballrace 5 through a concentric sleeve 6 which is cushioned from a casing 8 by springs 7, axial stresses being cushioned by springs 20 fitted between the bottom of the casing 8 and the lower edge of the ball-race. As shown, a sleeve 18 and washer 19 are fitted between the springs 20 and the ball-race. Oil from the space 13 flows into the chamber 12 through channels 14, 15. Any liquid escaping from the separator into the space 11 is prevented from overflowing into the bearing by means of a casing 21 which is fitted with a cover 24 and provided with an outlet 23.
Patent GB-1166925-A (GB)
Title: A heat-reactive alkyl phenolic resin
IPC: C08L61/10
Filed: 1967-04-03
Abstract: 1,166,925. Para-alkylphenol resins; neoprene adhesives. HITACHI CHEMICAL CO. Ltd. 3 April, 1967 [6 April, 1966; 27 April, 1966], No. 15207/67. Headings C3P and C3R. Heat-reactive phenolic resins containing no more than 0.2% of 2,6-bis-(hydroxymethyl)-4- alkylphenol and softening between 60‹ and 120‹ C. are prepared by (A) forming an adduct of 1 mol. of a para-alkylphenol and at least 1.5 mols. of formaldehyde in the presence of an alkaline catalyst (B) condensing the product for 0À5-5 hours at 70-100‹ C. in the presence of either (i) 0À005-0À5 mole per cent of benzene sulphonic acid or a homologue thereof or (ii) 1-30 mole per cent of phenol or a p-substituted phenol and 0À00-0À5 mole per cent of an acid catalyst and (C) removing any solvent or water at a temperature not above 130‹ C. In step (B) (ii) the acid catalyst may be benzene sulphonic acid or a homologue thereof, oxalic acid, acetic acid, hydrochloric acid or acetic acid. The resin produced may be reacted with magnesium oxide and incorporated into a polychloroprene adhesive also containing a metal oxide, an age resistor and a volatile organic solvent. The metal oxide may be magnesium oxide or zinc oxide, the age-resistor alphaphenylamino-naphthalene and the solvent toluene, n-hexane, cyclohexane, methyl ethyl ketone, acetone and ethylacetate. In examples, p-tertiary-butylphenol is reacted with paraformaldehyde in the presence of barium hydroxide and benzene. The product is neutralized with acetic acid and then condensed in the presence of 1(B) and 2(B) p-toluene sulphonic acid, 3(B) p-tert-butylphenol and oxalic acid, 4(B) phenol and p-toluene sulphonic acid, 4(C) p-tertiary-butylphenol and p-toluene sulphonic acid and 4(D) a novolak of p-tertiary-butylphenol and p-toluene sulphonic acid. The product in each case was incorporated into a polychloroprene adhesive.
Patent GB-258321-A (GB)
Title: Improvements relating to domestic fire grates
IPC: F24B1/18
Filed: 1925-06-12
Abstract: 258,321. Page, R. J., Dickson, J., and McElwain, H. C. June 12, 1925. 0 p e n fireplaces; grates; doors. - A fireplace of the type comprising a grate 4 revoluble in a wall opening, so as to heat either of two rooms, is provided with a verticallysliding shutter 10 and frame 12 at each end of the opening; the frame 12 serves to close the space between the grate and the surround, the other end of the opening being completely closed by the frame and shutter together. In the construction shown, the grate is mounted on a platform 5 with a central ball pivot 6 and ball castors 9, a tubular uptake 7<a> at the top of the grate engaging the lower end of the flue 8. The grate may be rotated by means of a bevel gear 16 around the uptake 7a, which is operated from a shaft 21 extending through the wall opening into both rooms. The frames 12 slide in vertical guides 12a at the sides of the opening, and the shutters 10 slide in guides 11 in the frames, both being preferably counterbalanced by weights 15. In a modification, the shutters are extended to slide in the guides 12a, the frames serving only to close the spaces between the grate and surround.
Patent GB-438964-A (GB)
Title: Gear wheel drive for internal combustion engine power plant
IPC: F02B61/06
Filed: 1934-05-22
Abstract: 438,964. Power plant. DEMAG AKT.- GES., 64, Werthauserstrasse, Duisburg, Germany. May 22, 1934, No. 15333. Convention date, May 29, 1933. [Class 7 (ii)] Two multicylinder oilengines drive a shaft 8, which lies outside the plane containing the engine crank - shafts 1, 2, through spur gearing 5, 6, 7. Flywheels 4, 3 with damping spring-couplings are carried by the engine shafts, and the cranks are set to furnish alternate ignition.
Patent GB-596339-A (GB)
Title: Improvements in soap saving devices
IPC: A47K7/03
Filed: 1945-06-16
Abstract: 596,339. Soap holders. SHAW, W., and WARBURTON, C. L. June 16, 1945, No. 15372. [Class 131] A bag or a container for soap comprises two sheets of porous material e.g. cellular rubber cemented around the edges and provided with a slit 4 in one face or along the edge for the insertion of the soap. A single sheet of material doubled on itself may be used. A closing flap 6. may be provided behind the slot 5 and the bag may be equipped with a suspending loop 11.
Patent GB-812810-A (GB)
Title: Synthesis of steroids
IPC: C07J5/00
Filed: 1955-05-27
Abstract: The invention comprises 21-alkanesulphonyloxy steroids of the formula <FORM:0812810/IV (b)/1> wherein Z is hydrogen or hydroxy, A is methyl or formyl and R11 is an alkane sulphonyloxy group, together with a process for the preparation of 11b -hydroxy-21-alkanesulphonyloxy steroids by reacting the corresponding 11b ,21-dihydroxy compounds with an alkanesulphonyl halide.  The 21-sulphonyloxy derivatives may then be reacted with an alkali or alkaline earth metal halide MeX to give one of the following: a D 9(11)-21-bromo steroid when X is bromine; an 11b -hydroxy-21-chlorosteroid when X is chlorine; an 11b -hydroxy-21-unsubstituted steroid when X is iodine; or a 11b -hydroxy-21-acetoxy steroid when X is fluorine and the reaction is performed in acetic acid.  The 11b -hydroxy products may then be dehydrated to the corresponding D 9(11) compounds, e.g. by reaction with a metal bromide, a strong acid particularly perchloric acid, or an acyl halide, particularly the sulphonyl halides.  11b ,21-Dihydroxy steroids in which the 4 : 5 position is double-bonded or saturated (normal or allo series), and which contain a 3-oxo or 3-hydroxy group (or groups convertible thereto) may be used, specified compounds being corticosterone, Compound F, 11b ,21-dihydroxypregnane-3,20-dione, 11b ,17a ,21 - trihydroxypregnane - 3,20-dione and aldosterone. In examples: (1) hydrocortisone is treated with mesyl chloride and pyridine in chloroform, yielding hydrocortisone 21-mesylate, which (2) is refluxed with LiBr in glacial acetic acid to give 21-bromo- D 4,9(11) pregnadiene - 17a  - ol - 3,20 - dione; or (3) is refluxed with LiCl in acetic acid giving 21-chloroD 4 - pregnene - 11b ,17a  - diol - 3,20 - dione, which (4) is dehydrated as in (2) to 21-chloroD 4,9(11) - pregnadien - 17a  - ol - 3,20 - dione; (5) hydrocortisone mesylate is refluxed with NaI in acetic acid yielding D 4-pregnene-11b , 17a -diol-3,20-dione, which (6) is dehydrated to D 4,9(11) - pregnadien - 17a  - ol - 3,20 - dione; (7) hydrocortisone mesylate is refluxed with NaF in glacial acetic acid giving hydrocortisone 21-acetate, which is then dehydrated to D 4,9(11)-pregnadiene - 17a ,21 - diol - 3,20 - dione 21-acetate using (8) LiBr, (9) HClO4, and (10) mesyl chloride. Specifications 792,223, 792,224, 809,113 and 809,114 are referred to. Reference has been directed by the Comptroller to Specification 793,850.
Patent GB-1392789-A (GB)
Title: Vibrating parts-feeders
IPC: B65G27/00
Filed: 1973-03-30
Abstract: 1392789 Vibrating feeding bowls VIBRAZIONI INDUSTRIALI SpA 30 March 1973 [31 March 1972] 15382/73 Heading B8A A vibrating parts-feeder comprises a container 2 made of sheet metal perforated all over with a spiral track 5. Orientation and control devices (not shown) may all be removably fitted to the inside of the wall and secured at any point thereon by means, such as hooks 6 and nuts 7 shown attaching the track 5, which lockably engage with the holes in the container wall. As shown the track 5 is an iron-bond, but it may be of resilient, synthetic material and the assembly elements may be integral with the track (not shown). The assembly elements may be a snap-fit into the wall perforations.
Patent GB-1501146-A (GB)
Title: Forced flow air heater
IPC: F24H3/04
Filed: 1975-04-15
Abstract: 1501146 Fan heaters SIEGFRIED PETZ [trading as ELEKTRO-WARME-TECHNIK SIEGFRIED PETZ] 15 April 1975 [30 April 1974] 15383/75 Headings F4V and F4S A fan heater comprises an elongate housing 1, 2 having a recessed portion 8 on its upper surface adjacent one end whose clearance depth is equal to or greater than the height of manually-operated switching and regulating means 9, 10. The fan may be of the transverse flow type which directs air over an electrical heating element from an inlet 21 to an outlet 15 covered by an arcuate grid 16 which conforms to the shape of the arcuate front side 6 of the housing.
Patent GB-990513-A (GB)
Title: Improvements relating to dashboard arrangements in motor vehicles
IPC: B60K37/02
Filed: 1964-04-14
Abstract: 990,513. Motor vehicles. DAIMLER-BENZ A.G. April 14, 1964 [April 17, 1963], No. 15430/64. Heading B7B. A motor vehicle has a dashboard 1 adjacent the windshield 6 and a shaped container 13 is secured to the dashboard and extends substantially over the whole width of the car. Protective cushions 18, 19 are also provided and where there are projections in the top surface of the dashboard to accommodate speedometers &c. the base 14 of the container may be apertured to straddle the projection.